English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 56552/90363 (63%)
造訪人次 : 11829929      線上人數 : 79
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/37254

    題名: A Fragmentation-Based Data Collision Free MAC Protocol with Power Control for Wireless Ad Hoc Networks
    作者: Shih, Kuei-Ping;Chang, Chau-Chieh;Chen, Yen-Da
    貢獻者: 淡江大學資訊工程學系
    關鍵詞: Carrier-sensing range;Fragmentation;Hidden terminal problem;Interference range;MAC protocol;Wireless ad hoc network
    日期: 2007-12
    上傳時間: 2010-04-15 10:14:03 (UTC+8)
    出版者: IEEE
    摘要: Resolving hidden terminal problem is one of the major responsibilities in designing MAC protocols for wireless ad hoc networks. IEEE 802.11 DCF, currently the most popular used MAC protocol, adopts four-way handshake to prevent hidden terminal problem. However, it has been pointed out that four-way handshake cannot completely prevent hidden terminal problem because the STAs which are out of the transmission ranges of both the transmitter and the receiver may still interfere with the receiver. As a result, the paper proposes a fragmentationbased MAC protocol with power control, named F-RCRC MAC protocol, to avoid the LIRC (Large Interference Range Collision) problem, a kind of hidden terminal problem, for wireless ad hoc networks. F-RCRC designs a new interframe space, named FIFS, to reduce the overhead caused by the fragmentation scheme.With the fragmentation, the design of FIFS can effectively avoid the hidden STAs interfering with the receivers'receiving. Moreover, a dynamic transmission power scheme is devised to actively and timely warn the hidden STAs such that the possible collision is avoided. Thus, the LIRC problem can be solved and the network throughput is increased accordingly. In addition, F-RCRC can reduce the energy consumption and increase the spatial reuse due to the controlled transmission power. It is further shown that FRCRC can also solve the POINT problem and work correctly in multi-rate environments. Simulation results show that F-RCRC performs much better than the related work in terms of network throughput as well as the power throughput.
    關聯: 2007 NCS 中華民國九十六年全國計算機會議大會論文集=Proceedings of 2007 National Computer Symposium,12頁
    顯示於類別:[資訊工程學系暨研究所] 會議論文


    檔案 描述 大小格式瀏覽次數
    1525-3511_p1786-1791.pdf303KbAdobe PDF506檢視/開啟



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋